1. Arregi, Karlos, and Asia Pietraszko. 2021. Unifying long head movement with phrasal movement: A new argument from Spellout. In Proceedings of the 38th west coast conference on formal linguistics, eds. Rachel Soo, Una Y. Chow, and Sander Nederveen, 21–31. Somerville: Cascadilla Press.
2. Bošković, Željko. 1997. On certain violations of the Superiority Condition, AgrO, and economy of derivation. Journal of Linguistics 33(1): 227–254.
3. Bošković, Željko. 1998. Multiple wh-fronting and economy of derivation. In Proceedings of the 16th west coast conference on formal linguistics, eds. Emily Curtis, James Lyle, and Gabriel Webster, 49–63. Stanford: CSLI Publications.
4. Bošković, Željko. 1999. On multiple feature checking: Multiple wh-fronting and multiple head movement. In Working minimalism, eds. Samuel David Epstein and Norbert Hornstein, 159–187. Cambridge: MIT Press.
5. Chao, Yuen Ren. 2011. A grammar of spoken Chinese. Beijing: The Commerical Press.